Application programming interface for providing access to computing platform definitions

Aspects of the disclosure are directed to providing access to the contents of a computing platform definition. A computing platform definition includes entries indicating devices and executables to deploy to a computing platform. An orchestration engine is communicatively connected to a computing platform that implements the computing platform definition. An interface includes callable units that provide access to the computing platform definition which may be invoked by the orchestration engine during execution of a stage of an orchestration pipeline performed with respect to the computing platform. The interface receives from the orchestration engine a request indicating one of the callable units. In response to the request, the interface retrieves the portion of the computing platform definition that is associated with the callable unit indicated and provides that portion of the computing platform definition to the orchestration engine for use during execution of the stage of the orchestration pipeline.